Display panel and manufacture method thereof, display apparatus

ABSTRACT

A display panel and a manufacture method thereof, and a display apparatus are provided. A display liquid crystal panel and a light control panel that are stacked. The display liquid crystal panel includes a first substrate and a second substrate that are opposite to each other; the light control panel includes a third substrate and a fourth substrate that are opposite to each other. The second substrate and the third substrate are between the first substrate and the fourth substrate. The first polarizer is between the second polarizer and the third polarizer. The first polarizer, the second polarizer, and the third polarizer are configured to allow backlight to emit out of the fourth substrate after passing through the second polarizer, the first polarizer, and the third polarizer in sequence.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is the National Stage of PCT/CN2020/118615 filed onSep. 29, 2020, which claims priority under 35 U.S.C. § 119 of ChineseApplication No. 201910943284.0 filed on Sep. 30, 2019, the disclosuresof which is incorporated by reference.

TECHNICAL FIELD

At least one embodiment of the present disclosure relates to a displaypanel, a manufacture method thereof, and a display apparatus.

BACKGROUND

For a display liquid crystal panel, the display image quality of thedisplay panel can be improved by combining local dimming technology(LD). In order to use the local dimming technology in, for example, aside-in type backlight unit, it is required to provide a light controlpanel between the display liquid crystal panel and the side-in typebacklight unit. The light control panel can control the lighttransmittance in a predetermined region, for a part, with highbrightness (grayscale), of an image the light transmittance of thecorresponding region of the light control panel is also high, and thiscorresponding region of the light control panel allows more light fromthe backlight unit to pass through. For a part, with low brightness, ofan image, the light transmittance of the corresponding region of thelight control panel is also low, and this corresponding region of thelight control panel allows less light from the backlight unit to passthrough, thereby achieving the purpose of improving the contrast of thedisplay image and enhancing the quality of the display image.

SUMMARY

At least one embodiment of the present disclosure provides a displaypanel, the display panel includes a display liquid crystal panel and alight control panel that are stacked, a first polarizer, a secondpolarizer, and a third polarizer. The display liquid crystal panelincludes a first substrate and a second substrate that are opposite toeach other, and a display liquid crystal layer between the firstsubstrate and the second substrate; the light control panel includes athird substrate and a fourth substrate that are opposite to each other,and a light control liquid crystal layer between the third substrate andthe fourth substrate. The second substrate and the third substrate arebetween the first substrate and the fourth substrate. The light controlliquid crystal layer is between the first polarizer and the secondpolarizer; the first polarizer is between the second polarizer and thethird polarizer, and the display liquid crystal layer is between thefirst polarizer and the third polarizer; the first polarizer, the secondpolarizer, and the third polarizer are configured to allow backlight toemit out of the display panel after passing through the secondpolarizer, the first polarizer, and the third polarizer in sequence.

For example, in the display panel provided by an embodiment of thepresent disclosure, the second polarizer is a reflective polarizer.

For example, in the display panel provided by an embodiment of thepresent disclosure, the first polarizer is between the second substrateand the third substrate, and the first polarizer is a transmissivepolarizer.

For example, in the display panel provided by an embodiment of thepresent disclosure, the first polarizer is between the second substrateand the third substrate, and the first polarizer is a reflectivepolarizer.

For example, in the display panel provided by an embodiment of thepresent disclosure, the first polarizer is a reflective polarizer, andthe first polarizer is opposite to the second polarizer.

For example, in the display panel provided by an embodiment of thepresent disclosure, the reflective polarizer is a wire-grid polarizer(WGP).

For example, in the display panel provided by an embodiment of thepresent disclosure, the second substrate and the third substrateconstitute an integral structure, the integral structure serves as acommon substrate, and the display liquid crystal panel and the lightcontrol panel share the common substrate; the common substrate is adisplay array substrate, and a display array component is provided on afirst side of the common substrate close to the first substrate; and thefirst polarizer is on a second side of the common substrate close to thefourth substrate.

For example, in the display panel provided by an embodiment of thepresent disclosure, the first substrate is a color filter substrate, thethird polarizer is on a side of the first substrate away from the commonsubstrate, and the third polarizer is a transmissive polarizer.

For example, in the display panel provided by an embodiment of thepresent disclosure, the first substrate is a color filter substrate, anda color filter layer is provided on a first side of the first substrateclose to the common substrate; and the third polarizer is a reflectivepolarizer, is on the first side of the first substrate and on a side ofthe color filter layer close to the first substrate.

For example, in the display panel provided by an embodiment of thepresent disclosure, the second substrate and the third substrateconstitute an integral structure, the integral structure serves as acommon substrate, and the display liquid crystal panel and the lightcontrol panel share the common substrate; the common substrate is acolor filter substrate, and a color filter layer is provided on a firstside of the common substrate close to the first substrate; and the firstpolarizer is on the first side of the common substrate close to thefirst substrate and on a side of the color filter layer close to thecommon substrate, or, the first polarizer is on a second side of thecommon substrate close to the fourth substrate.

For example, in the display panel provided by an embodiment of thepresent disclosure, the first substrate is a display array substrate,the third polarizer is on a side of the first substrate away from thecommon substrate, and the third polarizer is a transmissive polarizer.

For example, in the display panel provided by an embodiment of thepresent disclosure, the fourth substrate is a light control arraysubstrate, a light control array component is provided on a first sideof the fourth substrate close to the liquid crystal display panel, andthe second polarizer is on a second side of the fourth substrate awayfrom the common substrate.

For example, the display panel provided by an embodiment of the presentdisclosure further comprises a first protection layer covering thesecond polarizer; a material of the first protection layer is siliconoxide or silicon nitride, and a thickness of the first protection layeris greater than or equal to 4500 angstroms.

For example, in the display panel provided by an embodiment of thepresent disclosure, a polarization direction of the first polarizer isperpendicular to a polarization direction of the second polarizer; and apolarization direction of the third polarizer is perpendicular to thepolarization direction of the second polarizer.

For example, in the display panel provided by an embodiment of thepresent disclosure, the reflective polarizer is a wire-grid polarizer(WGP).

At least one embodiment of the present disclosure provides a displayapparatus, the display apparatus comprises the display panel provided byany one of the embodiments of the present disclosure, and a backlightsource which is on a side of the light control panel away from thedisplay liquid crystal panel, and is configured to allow backlight fromthe backlight source enter the display liquid crystal panel afterpassing through the light control panel.

At least one embodiment of the present disclosure provides a manufacturemethod of a display panel, and the manufacture method comprises: forminga display liquid crystal panel and a light control panel that arestacked, in which the display liquid crystal panel comprises a firstsubstrate and a second substrate that are opposite to each other, and adisplay liquid crystal layer between the first substrate and the secondsubstrate; the light control panel comprises a third substrate and afourth substrate that are opposite to each other, and a light controlliquid crystal layer between the third substrate and the fourthsubstrate; and the second substrate and the third substrate are betweenthe first substrate and the fourth substrate; forming a first polarizer;forming a second polarizer, in which the light control liquid crystallayer is between the first polarizer and the second polarizer; andforming a third polarizer, in which the first polarizer is between thesecond polarizer and the third polarizer, and the display liquid crystallayer is between the first polarizer and the third polarizer; the firstpolarizer, the second polarizer, and the third polarizer are configuredto allow backlight to emit out of the display panel after passingthrough the second polarizer, the first polarizer, and the thirdpolarizer in sequence.

For example, in the manufacture method of the display panel provided byan embodiment of the present disclosure, the second polarizer is areflective polarizer.

For example, in the manufacture method of the display panel provided byan embodiment of the present disclosure, the second substrate and thethird substrate constitute an integral structure, the integral structureserves as a common substrate, the display liquid crystal panel and thelight control panel share the common substrate, and the common substrateis a display array substrate; the manufacture method comprises: forminga display array component on a first side of the common substrate;forming a color filter layer on a first side of the first substrate;assembling the first substrate and the common substrate to form thedisplay liquid crystal panel, wherein the color filter layer and thedisplay array component are between the common substrate and the firstsubstrate and are opposite to each other; and forming the firstpolarizer on a second side of the common substrate opposite to the firstside of the common substrate after assembling the first substrate andthe common substrate.

For example, in the manufacture method of the display panel provided byan embodiment of the present disclosure, the first polarizer is areflective polarizer, and the first polarizer is opposite to the secondpolarizer.

For example, in the manufacture method of the display panel provided byan embodiment of the present disclosure, the reflective polarizer is awire-grid polarizer (WGP), and a process for forming the reflectivepolarizer comprises an etching process and a nanoimprint process.

For example, the manufacture method of the display panel provided by anembodiment of the present disclosure further comprises: forming thethird polarizer on a second side of the first substrate away from thecommon substrate after assembling the first substrate and the commonsubstrate, in which the third polarizer is a transmissive polarizer.

For example, in the manufacture method of the display panel provided byan embodiment of the present disclosure, the forming the color filterlayer on the first side of the first substrate comprises: forming thethird polarizer on the first side of the first substrate, wherein thethird polarizer is a wire-grid polarizer; and forming the color filterlayer on a side of the third polarizer away from the first substrateafter forming the wire-grid polarizer.

For example, the manufacture method of the display panel provided by anembodiment of the present disclosure further comprises: forming thesecond polarizer on a first side of the fourth substrate; forming alight control array component on a second side of the fourth substrateopposite to the first side of the fourth substrate after forming thesecond polarizer; assembling the fourth substrate and the commonsubstrate to form the light control panel, in which the light controlarray component is on the second side of the fourth substrate close tothe common substrate; and injecting liquid crystals respectively betweenthe first substrate and the common substrate and between the fourthsubstrate and the common substrate.

For example, the manufacture method of the display panel provided by anembodiment of the present disclosure further comprises: forming asacrifice protection layer covering the second polarizer before formingthe light control array component; and removing the sacrifice protectionlayer after forming the light control array component.

For example, the manufacture method of the display panel provided by anembodiment of the present disclosure further comprises: forming aprotection layer before forming the sacrifice protection layer, whereinthe sacrifice protection layer further covers the protection layer.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to demonstrate clearly technical solutions of the embodimentsof the present disclosure, the accompanying drawings in relevantembodiments of the present disclosure will be introduced briefly. It isapparent that the drawings may only relate to some embodiments of thedisclosure and not intended to limit the present disclosure.

FIG. 1A and FIG. 1B are schematic diagrams of local dimming;

FIG. 2A is a first schematic cross-sectional view of a display panelprovided by an embodiment of the present disclosure;

FIG. 2B is a schematic diagram of a transmissive polarizer in anembodiment of the present disclosure;

FIG. 2C is a schematic diagram of a reflective polarizer in anembodiment of the present disclosure;

FIG. 3 is a second schematic cross-sectional view of a display panelprovided by an embodiment of the present disclosure;

FIG. 4 is a third schematic cross-sectional view of a display panelprovided by an embodiment of the present disclosure;

FIG. 5 is a fourth schematic cross-sectional view of a display panelprovided by an embodiment of the present disclosure;

FIG. 6 is a fifth schematic cross-sectional view of a display panelprovided by an embodiment of the present disclosure;

FIG. 7 is a sixth schematic cross-sectional view of a display panelprovided by an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a display apparatus provided by anembodiment of the present disclosure;

FIG. 9A-FIG. 9M are schematic diagrams of a manufacture method of adisplay panel provided by an embodiment of the present disclosure; and

FIG. 10A-FIG. 10E are schematic diagrams of another manufacture methodof a display panel provided by an embodiment of the present disclosure.

DETAILED DESCRIPTION

In order to make objects, technical details and advantages of theembodiments of the disclosure apparent, the technical solutions of theembodiment will be described in a clearly and fully understandable wayin connection with the drawings related to the embodiments of thedisclosure. It is apparent that the described embodiments are just apart but not all of the embodiments of the disclosure. Based on thedescribed embodiments herein, those skilled in the art may obtain otherembodiment, without any creative work, which shall be within the scopeof the disclosure.

Unless otherwise defined, all the technical and scientific terms usedherein have the same meanings as commonly understood by one of ordinaryskill in the art to which the present disclosure belongs. The terms,such as “first,” “second,” or the like, which are used in thedescription and the claims of the present disclosure, are not intendedto indicate any sequence, amount or importance, but for distinguishingvarious components. The terms, such as “comprise/comprising,”“comprise/comprising,” or the like are intended to specify that theelements or the objects stated before these terms encompass the elementsor the objects and equivalents thereof listed after these terms, but notpreclude other elements or objects. The terms “inside,” “outside,”,“on,” “under” or the like are only used to indicate relative positionrelationship, and when the position of the object which is described ischanged, the relative position relationship may be changed accordingly.

Dimensions of the drawings in the present disclosure are not strictlydrawn to the actual scale, and the number of pixel units of colors inthe display panel are not limited to the number illustrated in thedrawings. The specific size and the number of each structure can bedetermined according to actual needs. The drawings described in thepresent disclosure are merely structural schematic diagrams.

The local dimming technology can divide the entire backlight unit into aplurality of backlight blocks that are driven individually, and each ofthe backlight blocks comprises one or more LEDs. According to graylevels that need to be displayed in different portions of a displayimage, driving currents of the LEDs of the backlight blockscorresponding to these portions are automatically adjusted, and thebrightness of each portion of the backlight unit can be adjustedindividually, thereby improving the contrast of the display image. Forexample, in an exemplary direct type backlight unit, a schematic diagramof region division of LED light sources in the entire backplane isillustrated in FIG. 1A. A small square in the figure represents one LEDunit, and a plurality of regions separated by dashed lines represent aplurality of backlight regions. Each of the backlight regions comprisesone or more LED units and can be controlled independently of otherbacklight regions. For example, the LEDs in each of the backlightregions are linked, that is, the same current passes through the LEDs inthe same backlight region.

The local dimming technology can adjust the brightness of thecorresponding backlight block according to the grayscale of the imagecontent displayed by the liquid crystal display panel. FIG. 1B is aschematic diagram illustrating the display brightness of the displayimage and the backlight block corresponding to the display image after alocal dimming process. As illustrated in FIG. 1B, the backlight unitcomprises a plurality of rectangular backlight regions arranged in anarray. The local dimming technology can adjust the brightness of thecorresponding backlight block according to the grayscale of the imagecontent displayed by the liquid crystal display panel. For the portionthat the brightness (grayscale) of the image is higher, the brightnessof the corresponding backlight block is higher, and for the portion thatthe brightness of the image is lower, the brightness of thecorresponding backlight block is lower. Therefore, the purposes ofreducing the backlight power consumption, improving the contrast of thedisplay image, and enhancing the quality of the display image areachieved.

However, the above-mentioned local dimming technology is applicable tothe direct type backlight unit, and the LEDs used as light sources areevenly distributed on the entire backplane, for example. In order toapply the local dimming technology to, for example, a side-in typebacklight unit, it is necessary to add a light control panel between thedisplay liquid crystal panel and the side-in type backlight unit. Thelight control panel can control the light transmittance in apredetermined region. For a portion of the display image in which thebrightness (grayscale) is higher, the light transmittance of the aregion, corresponding to this portion of the display image, of the lightcontrol panel is also higher, so as to allow more light emitted from thebacklight unit to pass through this portion of the light control panel;for a portion of the display image in which the brightness of the imageis lower, the light transmittance of a region, corresponding to thisportion of the display image, of the light control panel is also lower,so as to allow less light emitted from the backlight unit to passthrough this portion of the light control panel, thereby achieving thepurposes of improving the contrast of the display image and enhancingthe quality of the display image. In addition, in the case where thedirect type backlight unit is directly formed on a direct type backlightsource, it is difficult to divide the backlight unit to achieve a highdensity (the number of the backlight unit per unit area) and a highaccuracy. In the case where the division density and accuracyrequirements of the light control unit are high, these requirements canbe achieved using the light control panel, and the manufacture processof the light control panel is easy to be implemented.

In this type of local dimming display panel, light from the backlightsource passes through the light control panel and the display liquidcrystal panel in sequence, the light transmittance is usually low.Therefore, it is of great significance to improve the lighttransmittance of this type of display panel.

At least one embodiment of the present disclosure provides a displaypanel, the display panel includes a display liquid crystal panel and alight control panel that are stacked, a first polarizer, a secondpolarizer, and a third polarizer. The display liquid crystal panelincludes a first substrate and a second substrate that are opposite toeach other, and a display liquid crystal layer between the firstsubstrate and the second substrate; the light control panel includes athird substrate and a fourth substrate that are opposite to each other,and a light control liquid crystal layer between the third substrate andthe fourth substrate. The second substrate and the third substrate arebetween the first substrate and the fourth substrate. The light controlliquid crystal layer is between the first polarizer and the secondpolarizer; the first polarizer is between the second polarizer and thethird polarizer, and the display liquid crystal layer is between thefirst polarizer and the third polarizer; the first polarizer, the secondpolarizer, and the third polarizer are configured to allow backlight toemit out of the display panel after passing through the secondpolarizer, the first polarizer, and the third polarizer in sequence.

Exemplarily, FIG. 2A is a first schematic cross-sectional view of adisplay panel provided by an embodiment of the present disclosure. Asshown in FIG. 2A, the display panel 10 provided by the embodiment of thepresent disclosure includes a display liquid crystal panel 1 and a lightcontrol panel 2 that are stacked, a first polarizer 31, a secondpolarizer 32, and a third polarizer 33. The display liquid crystal panel1 includes a first substrate 11 and a second substrate 12 that areopposite to each other, and a display liquid crystal layer 13 locatedbetween the first substrate 11 and the second substrate 12; the lightcontrol panel 2 includes a third substrate 23 and a fourth substrate 24that are opposite to each other, and a light control liquid crystallayer 25 located between the third substrate 23 and the four substrates24; the second substrate 12 and the third substrate 23 are locatedbetween the first substrate 11 and the fourth substrate 24. The lightcontrol liquid crystal layer 23 is located between the first polarizer31 and the second polarizer 32; the first polarizer 31 is locatedbetween the second polarizer 32 and the third polarizer 33, and thedisplay liquid crystal layer 13 is located between the first polarizer31 and the third polarizer 33. The first polarizer 31, the secondpolarizer 32, and the third polarizer 33 are configured to allowbacklight to emit out of the display panel after passing through thesecond polarizer 32, the first polarizer 31 and the third polarizer 33in sequence. The backlight refers to light from a backlight source. Thepolarization direction of the first polarizer 31 is perpendicular to thepolarization direction of the second polarizer 32; and the polarizationdirection of the third polarizer 33 is perpendicular to the polarizationdirection of the second polarizer 32. Therefore, the display liquidcrystal panel 1 is used to realize the display function, and the lightcontrol panel 2 is used to control the direction or strength of thebacklight incident to the display liquid crystal panel 1 according torequirements, for example, to realize the requirements of switchingbetween a narrow viewing angle and a wide viewing angle, and controllingthe luminous intensity of different positions of the display panel to bedifferent. For example, the backlight may come from a direct typebacklight source or a side-in type backlight source.

In at least one embodiment of the present disclosure, for example, thesecond polarizer 32 is a reflective polarizer, so that light enteringthe light control panel 2 can be reflected multiple times by the secondpolarizer 32, thereby improving the light transmittance of the displaypanel 10. Through experiments, under the same other conditions, thelight transmittance of the light control panel 2 can reach more than30%, and in the case where the second polarizer is a non-reflectivepolarizer, the light transmittance is less than 30%. Under the sameconditions, the higher the light transmittance of the light controlpanel 2 is, the higher the light transmittance of the entire displaypanel 10 is. Therefore, in the embodiments of the present disclosure,under the same conditions of the liquid crystal display panel 1, thelight transmittance data of the light control panel 2 is used tocharacterize the light transmittance of the entire display panel 10.

For example, the above-mentioned reflective polarizer may be a wire gridtype polarizer, for example, a wire-grid polarizer (WGP), that is, thesecond polarizer is a wire-grid polarizer. The material of the wire-gridpolarizer is white metal to improve the reflectivity of the secondpolarizer. The white metal is, for example, aluminum which not only hashigh reflectivity, but also has stable properties, low hardness and goodductility, and make is easy to manufacture the wire-grid polarizer.

As shown in FIG. 2A, for example, the first substrate 11 is a colorfilter substrate. For example, a color filter layer is provided on aside of the first substrate 11 close to the second substrate 12. Thecolor filter layer includes a plurality of pixel units 6 arranged in anarray, and each of the plurality of pixel units 6 includes a pluralityof sub-pixels of different colors, and for example, each of theplurality of pixel units 6 includes a first color sub-pixel 61, a secondcolor sub-pixel 62, and a third color sub-pixel 63. The backlight fromthe backlight source enters the display liquid crystal panel 1 afterbeing controlled by the light control panel 2, and then exits afterpassing through the color filter layer. The second substrate 12 is adisplay array substrate, and a display array component 51 is provided ona side of the second substrate 12 close to the first substrate 11. Thedisplay array component 51 includes, for example, a pixel drive circuit;for example, the pixel drive circuit includes a thin film transistor(TFT) and other components for driving and controlling the display stateof the display liquid crystal panel 1. For the specific structure of thedisplay array component 51, those skilled in the art can useconventional technology to design.

For example, the fourth substrate 24 is a light control array substrate,a light control array component 52 is provided on a first side of thefourth substrate 24 close to the liquid crystal display panel 1, and thesecond polarizer 32 is located on a second side of the fourth substrate24 away from the third substrate 23. The light control panel 2 includesa plurality of light control units arranged in an array, and canrespectively control the dimming state of the plurality of light controlunits. For example, the light control array component 52 includes a thinfilm transistor (TFT) and other components for driving and controllingthe dimming state of the plurality of the light control units. For thespecific structure of the light control array component 52, thoseskilled in the art can use conventional technology to design.

For the simulation test of the light control panel 2 under differentconditions, the simulation results are shown in Table 1. In thesimulation test, a backlight source is provided, and the backlightsource includes a light-emitting device and a reflective sheet. Thereflective sheet is located on a side of the light-emitting device awayfrom the light control panel 2. Light emitted by the light-emittingdevice enters the light control panel 2 and and then to emit out of thelight control panel 2 after passing through the second polarizer 32 andthe first polarizer 31 in sequence. The simulation test conditions are:the transmittance of the transmissive polarizer being in a range of42%-43%, the transmittance of the WGP being 35%, the line width of eachof the plurality of grids in the WGP being 70 nm, the distance betweenadjacent grids being 70 nm, and the height of each of the plurality ofgrids being 200 nm.

TABLE 1 Type of the First Polarizer Transmissive Transmissive WGPPolarizer Polarizer Type of the Second Polarizer Transmissive WGP WGPPolarizer Light Transmittance (%) 28.5 32.8 30.78

For example, in the embodiment shown in FIG. 2A, the first polarizer 31is located between the second substrate 12 and the third substrate 23,and the first polarizer 31 is a transmissive polarizer. For example, thethird polarizer 33 is located on the side of the first substrate 11 awayfrom the second substrate 12, and the third polarizer 33 is atransmissive polarizer. In this case, the first polarizer 31 and thethird polarizer 33 are both in an integral sheet structure instead of awire grid structure, and both include an organic material. For example,the first polarizer 31 is an iodine-based polarizer, and the thirdpolarizer 33 is an iodine-based polarizer. Of course, in otherembodiments, the third polarizer 33 may be a dye-based polarizer. Inthis embodiment, it can be seen from Table 1 that through the simulationtest on the light control panel 2, the light transmittance of the lightcontrol panel 2 in this embodiment can reach 32.8%. In the abovesimulation results, the light control panel 2 of this embodiment has thehighest light transmittance, this is because the transmissive firstpolarizer 31 has the higher light transmittance, and it is especiallyeasy to to obtain a higher light transmittance using an iodine-basedpolarizer, and the reflectivity of the second polarizer 32 is higher, sothat the second polarizer 32 can increase the amount of light thatpasses through the first polarizer 31 after being reflected by thesecond polarizer 32, thereby significantly improving the lighttransmittance of the display panel 10.

In addition, according to Table 1, in the case where the first polarizer31 and the second polarizer 32 are both transmissive polarizers, thelight transmittance is 28.5% which is lower than the light transmittancein the case where the first polarizer 31 is a transmissive polarizer andthe second polarizer 32 is a WGP (that is, the embodiment shown in FIG.2A of the present disclosure), this is because in the embodiments shownin FIG. 2A and FIG. 3 of the present disclosure, the second polarizer 32is the WGP, a part of light that does not pass through the secondpolarizer 32 is reflected multiple times between the second polarizer 32and the reflective sheet in the backlight source, which can increase theamount of light passing through the second polarizer 32. In addition, inthe case where the first polarizer 31 and the second polarizer 32 areboth transmissive polarizers, the reuse of the reflective sheet in thebacklight source cannot be realized. However, in the process of lightfrom the backlight source passing through the transmissive firstpolarizer 31 and second polarizer 32 in sequence, a part of the lightpasses through the first polarizer 31 and the second polarizer 32, andthe other part of the light is absorbed by the first polarizer 31 andthe second polarizer 32, that is, the other part of the light isabsorbed by two times, which causes a large amount of loss of the light,and the reflective sheet of the backlight source cannot play thefunction of reflecting the light again.

It should be noted that in the embodiments of the present disclosure,for example, in the embodiment shown in FIG. 2A, in the case where thethird polarizer 33 is the above-mentioned transmissive polarizer,because the transmissive polarizer includes an organic material, thethird polarizer 33 cannot be disposed on the side of the first substrate11 close to the second substrate 12, that is, the third polarizer 33cannot be disposed in the liquid crystal cell, so as to prevent theorganic material from being unable to withstand high temperature duringthe cell assembling process and damaging the third polarizer.

Of course, in the embodiment shown in FIG. 2A, in the case where thefirst polarizer 31 is the above-mentioned transmissive polarizer, theposition of the first polarizer 31 includes, but is not limited to, theposition between the second substrate 12 and the third substrate 23. Forexample, in some embodiments, the first polarizer 31 is disposed on aside of the third substrate 23 away from the second substrate 12, or thefirst polarizer 31 is disposed on a side of the second substrate 12 awayfrom the third substrate 23.

For example, in the case where the first polarizer 31 is thetransmissive polarizer, as shown in FIG. 2B, the first polarizer 31includes a polyvinyl alcohol (PVA) film which is capable of generatingpolarized light, such as a polyvinyl alcohol (PVA) film includingdichroic dye iodine, and further includes two triacetate cellulose (TAV)protection films respectively on two sides of the polyvinyl alcohol(PVA) film. For example, the first polarizer 31 further includes apressure-sensitive adhesive on a side of any TAV protection film awayfrom the PVA film, a release film covering the pressure-sensitiveadhesive and in contact with the pressure-sensitive adhesive, and aprotection layer on the outermost layer of the transmissive polarizer.

For example, in some embodiments, the reflective polarizer in theembodiments of the present disclosure may be a non-wire grid polarizer,such as a sheet-shaped reflective polarizer. For example, as shown inFIG. 2C, the reflective polarizer includes the above-mentioned PVA film,the TAV protection film, the pressure-sensitive adhesive, the releasefilm, and a reflective layer on the side of the release film away fromthe PVA film. This kind of reflective polarizer can also improve thelight transmittance of the display panel to a certain extent, butcompared to this kind of reflective polarizer, in the case thereflective polarizer is the WGP, the display panel 10 can obtain higherlight transmittance.

For example, as shown in FIG. 2A, the display panel 10 further includesa protection layer 42, and the first protection layer 42 covers thesecond polarizer 32. In the case where the second polarizer 32 is theWGP, it is very susceptible to be damaged, and the first protectionlayer 42 can prevent the WGP from being damaged, thereby prolonging theservice life of the display panel 10. For example, the material of thefirst protection layer 42 is silicon oxide or silicon nitride, and thethickness of the first protection layer 42 is greater than or equal to4500 angstroms to form a dense protection layer to better prevent theWGP from scratching while avoiding external moisture getting into theWGP, in which the external moisture can cause thermal expansion of theWGP, and cause damage to the WGP. If the thickness of the firstprotection layer 42 is too small, the water and oxygen barrier effectwill be reduced. The thickness of the first protection layer 42 isgreater than or equal to 4500 angstroms to obtain a better water andoxygen barrier effect.

For example, the display panel 10 further includes an adhesive 7 forbonding the first substrate 11 and the second substrate 12 and bondingthe third substrate 23 and the fourth substrate 24 in the assemblingprocess, so as to form the display liquid crystal panel 1 and the lightcontrol panel 2.

For example, the first substrate 11, the second substrate 12, the thirdsubstrate 23, and the fourth substrate 24 may all be glass substrates,or quartz substrates, etc., or may be flexible substrates such aspolyimide substrates for forming flexible display panels.

For example, FIG. 3 is a second schematic cross-sectional view of adisplay panel provided by an embodiment of the present disclosure. Asshown in FIG. 3 , the difference between the display panel and thedisplay panel shown in FIG. 2A is that the first polarizer 31 is locatedbetween the second substrate 12 and the third substrate 23, and thefirst polarizer 31 is a reflective polarizer, for example, is awire-grid polarizer (WGP). In this case, light reflected by the firstpolarizer 31 is depolarized by the second polarizer 32 and then isreflected again by the second polarizer 32 and the first polarizer 31.The light is reflected multiple times between the first polarizer 31 andthe second polarizer 32, which significantly increases the lighttransmittance. It can be seen from Table 1 that according to thesimulation test on the light control panel 2, the light transmittance ofthe light control panel 2 in this embodiment can reach 30.78%.

For example, as shown in FIG. 3 , the display panel 10 further includesa second protection layer 41, the second protection layer 41 covers thefirst polarizer 31 to prevent the WGP from being damaged and therebyprolong the service life of the display panel 10. The material andthickness of the second protection layer 41 are the same as the materialand thickness of the first protection layer 42, and the foregoingdescriptions can be referred to.

It should be noted that in the embodiment shown in FIG. 3 , the firstpolarizer 31 is a reflective polarizer. In this case, the firstpolarizer 31 is located on the side of the second substrate 12 away fromthe first substrate 11 to avoid generating an interference electricfield between the first polarizer 31 made of a metal material and thedisplay array component 51, so as to prevent the interference electricfield from affecting the display effect. Other unmentioned features ofthe display panel shown in FIG. 3 are the same as those of the displaypanel shown in FIG. 2A, please refer to the previous descriptions.

For example, FIG. 4 is a third schematic cross-sectional view of adisplay panel provided by an embodiment of the present disclosure. Asshown in FIG. 4 , the difference between the display panel and thedisplay panel shown in FIG. 2A is that the first polarizer 31 is areflective polarizer such as a WGP, and the first polarizer 31 isopposite to the second polarizer 32; the second substrate 12 and thethird substrate 23 constitute an integral structure, and the integralstructure serves as a common substrate 110, and the display liquidcrystal panel 1 and the light control panel 2 share the common substrate110. The first substrate 11 is a color filter substrate, and a colorfilter layer 9 is provided on a first side of the first substrate 11close to the common substrate 110. The common substrate 110 is a displayarray substrate, a display array component 51 is provided on a firstside of the common substrate 110 close to the first substrate 11. Thefirst polarizer 31 is provided on a second side of the common substrate110 close to the fourth substrate. Because the display panel 10 of thisembodiment has three substrates, the display panel 10 is thinned, themanufacture process of the display panel can be simplified, and the costcan be saved. In addition, because the first polarizer 31 is disposed onthe second side of the common substrate 110 close to the fourthsubstrate, it is possible to avoid generating the interference electricfield between the first polarizer 31 made of a metal material and thedisplay array component 51 of the common substrate 110, and thereforeprevent the interference electric field from affecting the displayeffect. In this embodiment, the third polarizer 33 is a transmissivepolarizer, the third polarizer 33 is in an integral sheet structureinstead of a wire grid structure, and the material of the thirdpolarizer includes an organic material. For example, the third polarizer33 is an iodine-based polarizer to obtain a higher light transmittance.In this case, while the above-mentioned effect of improving the lighttransmittance of the display panel 10 can be achieved, the thirdpolarizer 33 is located on the side of the first substrate away from thecommon substrate, so as to prevent the third polarizer 33 from beingdamaged during the cell assembling process. Other unmentioned featuresand technical effects of the display panel shown in FIG. 4 are the sameas those in FIG. 2A, please refer to the previous descriptions.

FIG. 5 is a fourth schematic cross-sectional view of a display panelprovided by an embodiment of the present disclosure. As shown in FIG. 5, the difference between the display panel and the display panel shownin FIG. 4 is that a color filter layer 9 is provided on the first sideof the first substrate 11 close to the common substrate 110, and thethird polarizer 33 is a reflective polarizer, such as a wire-gridpolarizer (WGP), and is located on the first side of the first substrate11 and on the side of the color filter layer 9 close to the firstsubstrate 11. The WGP cannot be disposed on the first side of the firstsubstrate 11 away from the common substrate 110, so as to prevent lightreflection generated by the WGP from affecting the display. The WGP maybe disposed on the second side of the first substrate 11 close to thecommon substrate 110 to reduce the reflection of external light. If theWGP (that is, the third polarizer 33) is disposed on a side of the colorfilter layer 9 away from the first substrate 11, in the manufactureprocess, the color filter layer 9 is formed first, and then the WGP isformed on the color filter layer, the forming process of the WGP usuallyincludes a nanoimprint step, and in this process, the nanoimprint stepmay damage or deform the color filter layer 9. Therefore, in thisembodiment, while the above-mentioned effect of improving the lighttransmittance of the display panel 10 can be achieved, the thirdpolarizer 33 is located on the first side of the first substrate 11 andis located on the side of the color filter layer 9 close to the firstsubstrate 11, which can prevent the above-mentioned damage to the colorfilter layer 9. Other unmentioned features of the display panel shown inFIG. 5 are the same as those in FIG. 4 , please refer to the previousdescriptions.

FIG. 6 is a fifth schematic cross-sectional view of a display panelprovided by an embodiment of the present disclosure, and FIG. 7 is asixth schematic cross-sectional view of a display panel provided by anembodiment of the present disclosure. As shown in FIG. 6 , thedifference between the display panel and the display panel shown in FIG.4 is that the first substrate 11 is a display array substrate, and adisplay array component 51 is provided on the second side of the firstsubstrate 11 close to the common substrate 110. The third polarizer 33is located on the side of the first substrate 11 away from the commonsubstrate 110. The third polarizer 33 is a transmissive polarizer. Thethird polarizer 33 is in an integral sheet structure instead of a wiregrid structure. The material of the polarizer 33 includes an organicmaterial. For example, the third polarizer 33 is an iodine-basedpolarizer to help to increase the light transmittance of the displaypanel 10. The common substrate 110 is a color filter substrate. A colorfilter layer 9 is provided on the first side of the common substrate 110close to the first substrate 11; the first polarizer 31 is located onthe first side of the common substrate 110 close to the first substrate11 and is located on the side of the color filter layer 9 close to thecommon substrate 110. Therefore, while the above-mentioned effect ofimproving the light transmittance of the display panel 10 is achieved,it is possible to prevent the color filter layer 9 from being damagedduring the manufacture process of the display panel, similar to theembodiment shown in FIG. 5 . Alternatively, as shown in FIG. 7 , thefirst polarizer 31 is disposed on a second side of the common substrate110 close to the fourth substrate 24. The display panel 10 shown in FIG.7 achieves the same or similar technical effects as the display panel 10shown in FIG. 4 . The other unmentioned features and technical effectsof the panels shown in FIG. 6 and FIG. 7 are the same as those in FIG. 4, please refer to the previous descriptions.

At least one embodiment of the present disclosure provides a displayapparatus, the display apparatus includes any display panel provided bythe embodiments of the present disclosure.

FIG. 8 is a schematic diagram of a display apparatus provided by anembodiment of the disclosure. As shown in FIG. 8 , the display apparatus100 includes any display panel 10 provided by the embodiments of thepresent disclosure. The display apparatus 100 is a liquid crystaldisplay apparatus. For example, the display apparatus 100 may beimplemented as the following products: a mobile phone, a tabletcomputer, a display, a notebook computer, an ATM machine, or otherproducts or components with display functions. The display apparatus 10can control the direction or intensity of the backlight incident to thedisplay liquid crystal panel 1 and has a high light transmittance.

At least one embodiment of the present disclosure provides a manufacturemethod of a display panel, the method includes: forming a display liquidcrystal panel and a light control panel that are stacked, in which thedisplay liquid crystal panel includes a first substrate and a secondsubstrate that are opposite to each other, and a display liquid crystallayer between the first substrate and the second substrate; the lightcontrol panel includes a third substrate and a fourth substrate that areopposite to each other, and a light control liquid crystal layer betweenthe third substrate and the fourth substrate; and the second substrateand the third substrate are between the first substrate and the fourthsubstrate; forming a first polarizer; forming a second polarizer, inwhich the light control liquid crystal layer is between the firstpolarizer and the second polarizer; and forming a third polarizer, inwhich the first polarizer is between the second polarizer and the thirdpolarizer, and the display liquid crystal layer is between the firstpolarizer and the third polarizer; the first polarizer, the secondpolarizer, and the third polarizer are configured to allow backlight toemit out of the display panel after passing through the secondpolarizer, the first polarizer, and the third polarizer in sequence.

Exemplarily, FIGS. 9A-9M are schematic diagrams of a manufacture methodof a display panel provided by an embodiment of the present disclosure.In this embodiment, the second substrate and the third substrate areintegrated into an integral structure. The integral structure serves asa common substrate, the display liquid crystal panel and the lightcontrol panel share the common substrate, and the common substrate is adisplay array substrate. The manufacture method includes the followingsteps.

As shown in FIG. 9A, a common substrate 110 is provided, and a displayarray component 51 is formed on the first side of the common substrate110. The display array component 51 includes components, for example, apixel drive circuit, such as a thin film transistor (TFT), etc., fordriving and controlling the display state of the liquid crystal panel 1,a semiconductor process can be used to form the display array component51, and those skilled in the art can refer to conventional techniques.

As shown in FIG. 9B, a first substrate 11 is provided, and a thirdpolarizer 33 is formed on the first side of the first substrate 11. Thethird polarizer 33 is a wire-grid polarizer (WGP). For example, theforming process of the WGP includes: forming a metal layer; forming anorganic layer on the metal layer; forming an etching barrier layer onthe organic layer using a nanoimprint process, and using the etchingbarrier layer as a mask to etching the metal layer to form the WGP.

As shown in FIG. 9C, after forming the wire-grid polarizer (that is, thethird polarizer 33), a color filter layer 9 is formed on the side of thethird polarizer 33 away from the first substrate 11. For the specificstructure of the color filter layer 9, please refer to the descriptionsin the previous embodiments, which is not be repeated here. In theabove-mentioned manufacturing process of the WGP, the nanoimprint stepmay damage or deform the color filter layer 9. Therefore, in thisembodiment, because after the wire-grid polarizer (that is, the thirdpolarizer 33) is formed, the color filter layer 9 is formed on the sideof the third polarizer 33 away from the first substrate 11, and thecolor filter layer 9 can be prevented from being damaged by theabove-mentioned nanoimprint step.

As shown in FIG. 9D, the first substrate 11 and the common substrate 110are assembled to form a display liquid crystal panel as shown in FIG.9E. The color filter layer 9 and the display array component 51 arelocated between the common substrate 110 and the first substrate 11 andare opposite to each other.

As shown in FIG. 9F, after assembling the first substrate 11 and thecommon substrate 110, the first polarizer 31 is formed on the secondside of the common substrate 110 opposite to the first side. Forexample, the first polarizer 31 is a reflective polarizer, such as aWGP, and the first polarizer 31 is opposite to the second polarizer 32so as to increase the light transmittance of the display panel. Forspecific technical effects, please refer to the previous descriptions,which is not repeat here. If the WGP is formed on the second side of thecommon substrate 110 first, then the display array component 51 isformed, and then the cell is assembled, in order to prevent the WGP frombeing damaged in the process of forming the display array component 51,it is required to form a protection film covering the WGP, and it isrequired to remove the protection film after finishing the assemblingprocess, which increases the process steps. Therefore, in thisembodiment, the display array component 51 is formed on the commonsubstrate 110 first, and then the first substrate 11 and the commonsubstrate 110 are assembled to form a cell, and then WGP is formed onthe common substrate 110, thereby simplifying the manufacture process ofthe display panel, improving production efficiency and reducingproduction costs. At least the process of forming the protection film toprevent damage to the WGP and the process of removing the protectionfilm can be omitted.

As shown in FIG. 9G, a fourth substrate 24 is provided, and a secondpolarizer 32 is formed on the first side of the fourth substrate 24. Forexample, the second polarizer 32 is a reflective polarizer, such as aWGP. For the specific manufacture process, please refer to the previousdescriptions.

As shown in FIG. 9H, a first protection layer 42 covering the secondpolarizer 32 is formed. The material of the first protection layer 42is, for example, an inorganic material such as silicon oxide or siliconnitride, for example, which can be formed by a deposition method. Theembodiments of the present disclosure do not limit the material of thefirst protection layer 42.

As shown in FIG. 9I, the manufacture method further includes: forming asacrifice protection layer 8 covering the second polarizer 32 beforeforming the light control array component. For example, the sacrificeprotection layer 8 is an organic layer, for example, the material of theorganic layer is a resin material or a photoresist material tofacilitate subsequent removal of the sacrifice protection layer 8. Ofcourse, the embodiments of the present disclosure do not limit this.

As shown in FIG. 9J, after forming the second polarizer 32, for example,after forming the sacrifice protection layer 8, the light control arraycomponent 52 is formed on the second side of the fourth substrate 42opposite to the first side. The light control array component 52 may beformed by a semiconductor process, and the conventional technology inthe art can be referred to for details.

As shown in FIG. 9K, after forming the light control array component 52,the sacrifice protection layer 8 is removed. For example, the sacrificeprotection layer 8 can be removed by a peeling method.

As shown in FIG. 9L, the fourth substrate 24 and the common substrate110 are assembled to form a light control panel, and the light controlarray component 52 is located on the side of the fourth substrate 24close to the common substrate 110. Liquid crystals are injected betweenthe first substrate 11 and the common substrate 110 and between thefourth substrate 24 and the common substrate 110, thereby forming thedisplay panel 10 shown in FIG. 9M, that is, the display panel 10 shownin FIG. 5 . In the display panel 10, the first substrate 11 is a colorfilter substrate, and the common substrate 110 is a display arraysubstrate.

In the process of manufacturing the display panel shown in FIG. 6 ,after the first polarizer 31 is formed, a color filter layer 9 is formedon the first side of the first polarizer 31 away from the commonsubstrate 110 to prevent the color filtering layer 9 from being damagedin the process of forming the WGP. For the steps of forming othercorresponding structures of the display panel shown in FIG. 6 ,reference may be made to the sequence of the steps in the embodiments ofthe above-mentioned manufacture method.

FIGS. 10A-FIG. 10E are schematic diagrams of another manufacture methodof a display panel provided by an embodiment of the present disclosure.

As shown in FIG. 10A, a common substrate 110 is provided, and a displayarray component 51 is formed on the first side of the common substrate110. The display array component 51 includes components, for example,includes a pixel drive circuit; for example, the drive circuit includesa thin film transistor (TFT), etc. for driving and controlling thedisplay state of the liquid crystal panel 1, a semiconductor process maybe adopted to form the display array component 51, and those skilled inthe art can refer to conventional techniques.

As shown in FIG. 10B, providing a first substrate 11, and forming acolor filter layer 9 on the first side of the first substrate 11.

As shown in FIG. 10C and FIG. 10D, the first substrate 11 and the commonsubstrate 110 are assembled to form a display liquid crystal panel; thecolor filter layer 9 and the display array component 51 are locatedbetween the common substrate 110 and the first substrate 11 and areopposite to each other.

As shown in FIG. 10E, after assembling the first substrate 11 and thecommon substrate 110, a third polarizer 33 is formed on the second sideof the first substrate 11 away from the common substrate 110; the thirdpolarizer 33 is a transmissive polarizer. The third polarizer 33 is inan integral sheet structure instead of a wire grid structure, and thematerial of the third polarizer 33 includes an organic material. Forexample, the third polarizer 33 is an iodine-based polarizer or adye-based polarizer. For example, the third polarizer 33 is directlyattached to the second side of the first substrate 11.

Then, the steps in the descriptions of FIGS. 9F-9M are performed assubsequent manufacture steps to form the display panel 10 shown in FIG.4 .

For the technical effects of the structure that are not mentioned in theembodiments of the manufacture method, please refer to the descriptionsin the embodiments of the display panel.

What is claimed is:
 1. A display panel, comprising: a display liquidcrystal panel and a light control panel that are stacked, wherein thedisplay liquid crystal panel comprises a first substrate and a secondsubstrate that are opposite to each other, and a display liquid crystallayer between the first substrate and the second substrate; the lightcontrol panel comprises a third substrate and a fourth substrate thatare opposite to each other, and a light control liquid crystal layerbetween the third substrate and the fourth substrate; and the secondsubstrate and the third substrate are between the first substrate andthe fourth substrate; a first polarizer; a second polarizer, wherein thelight control liquid crystal layer is between the first polarizer andthe second polarizer; and a third polarizer, wherein the first polarizeris between the second polarizer and the third polarizer, and the displayliquid crystal layer is between the first polarizer and the thirdpolarizer; the first polarizer, the second polarizer, and the thirdpolarizer are configured to allow backlight to emit out of the displaypanel after passing through the second polarizer, the first polarizer,and the third polarizer in sequence; the second substrate and the thirdsubstrate constitute an integral structure, the integral structureserves as a common substrate, and the display liquid crystal panel andthe light control panel share the common substrate; the common substrateis a display array substrate, and a display array component is providedon a first side of the common substrate close to the first substrate;the first substrate is a color filter substrate, and a color filterlayer is provided on a first side of the first substrate close to thecommon substrate; and the third polarizer is a reflective polarizer, ison the first side of the first substrate and on a side of the colorfilter layer close to the first substrate.
 2. The display panelaccording to claim 1, wherein the first polarizer is a transmissivepolarizer.
 3. The display panel according to claim 1, wherein the firstpolarizer is a reflective polarizer.
 4. The display panel according toclaim 1, wherein the first polarizer is a reflective polarizer, and thefirst polarizer is opposite to the second polarizer.
 5. The displaypanel according to claim 1, wherein the first polarizer is on the firstside of the common substrate close to the first substrate and on a sideof the color filter layer close to the common substrate, or, the firstpolarizer is on a second side of the common substrate close to thefourth substrate.
 6. The display panel according to claim 1, wherein thefourth substrate is a light control array substrate, a light controlarray component is provided on a first side of the fourth substrateclose to the liquid crystal display panel, and the second polarizer ison a second side of the fourth substrate away from the third substrate.7. The display panel according to claim 1, further comprising: a firstprotection layer covering the second polarizer, wherein a material ofthe first protection layer is silicon oxide or silicon nitride, and athickness of the first protection layer is greater than or equal to 4500angstroms.
 8. The display panel according to claim 1, wherein apolarization direction of the first polarizer is perpendicular to apolarization direction of the second polarizer; and a polarizationdirection of the third polarizer is perpendicular to the polarizationdirection of the second polarizer.
 9. A display apparatus, comprising:the display panel according to claim 1; and a backlight source which ison a side of the light control panel away from the display liquidcrystal panel, and is configured to allow backlight from the backlightsource enter the display liquid crystal panel after passing through thelight control panel.
 10. A manufacture method of a display panel,comprising: forming a display liquid crystal panel and a light controlpanel that are stacked, wherein the display liquid crystal panelcomprises a first substrate and a second substrate that are opposite toeach other, and a display liquid crystal layer between the firstsubstrate and the second substrate; the light control panel comprises athird substrate and a fourth substrate that are opposite to each other,and a light control liquid crystal layer between the third substrate andthe fourth substrate; and the second substrate and the third substrateare between the first substrate and the fourth substrate; forming afirst polarizer; forming a second polarizer, wherein the light controlliquid crystal layer is between the first polarizer and the secondpolarizer; and forming a third polarizer, wherein the first polarizer isbetween the second polarizer and the third polarizer, and the displayliquid crystal layer is between the first polarizer and the thirdpolarizer; the first polarizer, the second polarizer, and the thirdpolarizer are configured to allow backlight to emit out of the displaypanel after passing through the second polarizer, the first polarizer,and the third polarizer in sequence; the second substrate and the thirdsubstrate constitute an integral structure, the integral structureserves as a common substrate, and the display liquid crystal panel andthe light control panel share the common substrate; the common substrateis a display array substrate, and a display array component is providedon a first side of the common substrate close to the first substrate;the first substrate is a color filter substrate, and a color filterlayer is provided on a first side of the first substrate close to thecommon substrate; and the third polarizer is a reflective polarizer, ison the first side of the first substrate and on a side of the colorfilter layer close to the first substrate.
 11. The manufacture methodaccording to claim 10, wherein the manufacture method comprises: forminga display array component on a first side of the common substrate;forming a color filter layer on a first side of the first substrate;assembling the first substrate and the common substrate to form thedisplay liquid crystal panel, wherein the color filter layer and thedisplay array component are between the common substrate and the firstsubstrate and are opposite to each other; and forming the firstpolarizer on a second side of the common substrate opposite to the firstside of the common substrate after assembling the first substrate andthe common substrate.
 12. The manufacture method according to claim 10,wherein the first polarizer is a reflective polarizer, and the firstpolarizer is opposite to the second polarizer; or, the first polarizeris a transmissive polarizer.
 13. The manufacture method according toclaim 10, wherein a process for forming the reflective polarizercomprises an etching process and a nanoimprint process.